检索结果-南通市图书馆

Study on dynamics of shear waves - Ⅱ Triggering mechanism and amplitude decay

在线全文

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 1989年第2期8卷 171-178页

作者： YuanYeli Zheng Quan’an first institute of {2., {3. oceanic administration, qingdao, China

Starting from vorticity equation, the triggering mechanism and amplitude decay of shear waves in the ocean are discussed in this paper. The theoretical analysis indicates that by the action of stripped external force (for examples, the sudden setting of stripped wind, moving stripped wind, etc. ), shear waves can be triggered. This is qualitatively consistent with satellite observations. The amplitude decay process of shear waves by the action of side friction is also discussed in the paper. The theoretical model is quantitatively consistent with satellite observations.

关键词： exp Pro Triggering mechanism and amplitude decay Study on dynamics of shear waves

Variation of reactivity of particulate and sedimentary organic matter along the Zhujiang River Estuary

在线全文

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 2003年第4期22卷 557-568页

作者： Chen Jianfang 1,2. Jin Haiyan 1,2. Yin Kedong3. Li Yan 1,2.1. Key Laboratory of Submarine Geosciences of {3. oceanic {2., Hangzhou 3.0012. China. 2. Laboratory of Regional oceanography, Second institute of oceanography, {3. oceanic Aedministration, Hangzhou,3.0012. China 3. Department of Biology, Hong Kong University of Science and Technology, Hong Kong Key Lab. of Submarine Geosci. state Hangzhou 310012 China Laboratory of Regional oceanography Second Institute of Oceanography State Oceanic Administration Hangzhou 310012 China Department of Biology Hong Kong Univ. of Sci./Technology Hong Kong Hong Kong

To investigate organic matter source and reactivity in the Zhujiang River (Pearl River) Estuary and its adjacent areas, particulate organic carbon (POC), particulate hydrolysable amino acids (PHAA), and Chl a during two cruises in July 1999 and July 2.00 were measured. The highest POC and PHAA concentration was observed in the waters with maximum Chl a. The spectra distribution, relative content (dry weight in milligram per gram), PHAA-C% POC and other indicators such as the ratios of amino acids vs. amino sugars (AA/AS) and glucosamine vs. galactosamine (Glum/Gal) suggested that particulate amino acids in the water column and sediments in the Zhujiang River Estuary were mainly derived from biogenic processes rather than transported from terrestrial erosion. In inner estuary where high turbidity was often observable, organic matter was mainly contributed by re-suspension of bottom sediments with revealed zooplankton, microbial reworked characteristics, which suggest that these organic matters were relatively 'old'. In the estuarine brackish region, organic matter in water column is mainly contributed by relatively fresh, easily degradable phytoplankton derived organic matter. During physical - biological processes within the eastuary, organic matter derived from phytoplankton was subjected to alteration by zooplankton grazing and bacterial reworking.

关键词： organic matter reactivity amino acids the Zhujiang River Estuary

The continental shelf wave of the East China Sea and its effect on the Kuroshio

在线全文

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 1992年第3期11卷 367-374页

作者： Kong Xiangde, Yin Xunf u and Li Fanhua first institute of {2., {3. oceanic administration, qingdao 2.6003. China

The free shelf wave theory is applied to the practical case of the continental shelf in the East China Sea to analyse the effects of the shelf wave on the Kuroshio. The results indicate that the shelf wave in lower frequency travels from north to south and its phase velocity is proportional to the Kuroshio's current velocity) the maximum current velocity of the Kuroshio lies at the continental margin. The analytical solutions obtained indicate that the hydrodynamic characters of the sea region over the shelf present band structure. The horizontal motion ( x -component) caused by the shelf wave at the margin may be one of the causes for generating wavy pattern of the Kuroshio's axis .

关键词： The continental shelf wave of the East China Sea and its effect on the Kuroshio wave

Distribution　of　biomass　of　zooplankton　in　the　Kuroshio　area　of　the　East　China　Sea

在线全文

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 1996年第3期15卷 365-376页

作者： Meng Fan Chen Shiqun and Wu Baoling (first institute Of {2., {3. oceanic administration, qingdao 2.6003. China) first institute of {2. State Oceanic Administration Qingdao 266003 China

This paper makes an analysis and study of the plankton samples collected from the Kuroshio and its adjacent areas in the north of the East China Sea during the seven successive years (from 1986 to 1992. in the implementation of the programme 'China-Japan Joint Research on the Kuroshio' as well as a brief summary of the distribution of the biomass of food zooplankton and its relation to the oceanic environment. The results indicate that the biomass of zooplankton in the study area is relatively low, with in annual mean of 71. 2. mg/m3.only. The seasonal variation of biomass is not obvious and salinity is an important factor influencing seasonal and annual variations of zooplankton biomass in the study area. The Kuroshio front in the East China Sea and the Tsushima Warm Current front divide the study area into two parts from north to south in the vicinity of the 2.0 m isobath: the biomass in the western part was greater than 50 mg/m3.whereas was less than 50 mg/m3.in the eastern part. The spatiotemporal distributions of different ecological groups of zpplankton and their biomass basically reflect the basic features of the hydrolagical conditions in each season in the study area.

关键词： Zooplankton biomass Kuroshio area

Morphology,phylogenetic position,and ecophysiology of Alexandrium ostenfeldii(Dinophyceae) from the Bohai Sea,China

在线全文

学校读者我要写书评

暂无评论

Journal of Systematics and Evolution 2011年第6期49卷 606-616页

作者： Haifeng GU(Third institute of oceanography,{2. {3. administration,Xiamen 3.1005,China) ( Third institute of oceanography State Oceanic Administration Xiamen 361005 China)

Alexandrium ostenfeldii is a potentially toxic dinoflagellate that often occurs in coastal areas at high *** we report the presence of *** in the Bohai Sea,China,for the first *** vegetative cells of *** are characterized by a narrow first apical plate and a large ventral pore located on the anterior right *** large subunit sequence comparison revealed that the Chinese strain differs from the Finnish strains at only three positions,and from *** of Spain at five *** parsimony analysis revealed that *** from China and Finland and *** from Spain grouped *** were the nearest sister group to a clade with *** from New Zealand,Europe,and North *** culture,growth did not occur at temperatures below 9℃ and occurred at salinities between 7 and 2. *** took 10-2. days for newly formed cysts to mature at 2.℃.Lower temperature delayed germination,but the germination rate exceeded 90% at temperatures from 12.to 2.℃.No germination occurred below 9℃ after 1 month of *** Chinese strain of *** produced neither spirolides nor paralytic shellfish poisoning toxins.

关键词： Alexandrium ostenfeldii Bohai Sea China cyst growth toxicity.

The geological significance of fossils in the coastal loess in the Bohai Straits and Liaodong Peninsula

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 1997年第1期16卷 71-83页

作者： Cheng Zhenbo, Fu Mingzuo and Ju Xiaohua first institute of {2., {3. oceanic administration, qingdao 2.6003. China first institute of {2. State Oceanic Administration Qingdao 266003 China

Based on the analysis of the characteristics of the fossils (mollusks, Radiolaria, planktonic and benthic Foraminifera and Ostracoda) found in the four loess profiles located respectively at Heishigou and Beizhuang Villages on Daheishan Island in the Miaodao Islands in the Bohai Straits, and Daweijia and Yujiawaizi Villages in Jinzhou County, Liaodong Peninsula, the distribution and abundance variation of the fossils in vertical profiles are studied, the source of coastal loess is probed and the relationship between loess deposition and paleoclimatic environment as well as sea-level changes is discussed.

关键词： Coastal loess material source fossil organisms paleoclimate

Correlativity between neural complex and gonadal development in Styela plicata

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1997年第10期42卷 864-867页

作者： FANG Yongqiang, LIN Jiahan and HUANG Weiquan1. Third institute of oceanography, {2. {3. administration, Xiamen 3.1005, China 2. Department of Biology, Xiamen U-niversity, Xiamen 3.1005, China 3. Fourth Military Medical University, Xi’an 71003.2} China Third institute of oceanography State Oceanic Administration Xiamen 361005 China

IT has been demonstrated that two reproductive hormones,gonadotropin-releasing hormone(GnRH)and gonadotropin(GTH),exist in the nervous system and Hatschek’s pit oflancelet,a species of Cephalochordata,and that these ... 详细信息

关键词： Styela plicata neural complex reproductive hormone.

The inversion of the Equatorial Undercurrent in the western tropical Pacific during 1986/1987 El Nino event

在线全文

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 1993年第4期12卷 487-498页

作者： Wang Zongshan, Jin Meibing, Zou Emei and Xu Bochang first institute of {2., {3. oceanic administration, qingdao 2.6003. China first institute of {2. State Oceanic Administration Qingdao 266003 China China

On the basis of time series measurements of winds, currents, temperature and salinity from equatorial current meter mooring and acoustic Doppler current profiler during the PRC/USA joint air-sea interaction studies in the western tropical Pacifc Ocean and sea level data provided by Prof. Wyrtki, analyses are made of the physical process and mechanism for the exceptionally inverse phenomenon (westward) of the Equatorial Undercurrent (EUC) in the western tropical Pacific after entering the mature stage of 1986/1987 ENSO event, and the numerical simulation is also conducted by 'cross section' model. The results indicate that the inversion of the EUC is related to that of pressure gradient force near the equator under the influence of non-local permanent westerlies.

关键词： The inversion of the Equatorial Undercurrent in the western tropical Pacific during 1986/1987 El Nino event El Nino

Improvement of the SLP simulation in the coupled AGCM-ocean surface wave model

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 2005年第20期50卷 2397-2400页

作者： YU Weidong1, 2. 3. LI Zhaoxin4 & YUAN Yeli3.1. institute of Oceanology, Chinese Academy of Sciences, qingdao 2.6071, China 2. Graduate School of Chinese Academy of Sciences, Beijing 100049, China 3. Laboratory of Marine Science and Numerical Modeling, {2. institute of oceanography, state oceanic administration, qingdao 2.6061, China 4. LMD/CNRS, Univ. Paris 6, Paris, France institute of Oceanology Chinese Academy of Sciences Qingdao 266071 China Graduate School of Chinese Academy of Sciences Beijing 100049 China Laboratory of Marine Science and Numerical Modeling First Institute of Oceanography State Oceanic Administration Qingdao 266061 China LMD/CNRS Univ. Paris 6 Paris France

The article reports on the use of the coupled atmosphere-ocean general circulation models for the climate study. The coupling of the ocean surface wave model with coupled general circulation models is proposed to prevent models from unrealistic simulations. The coupling of ocean surface wave model with oceanic general circulation model can result in much better reproduction of the upper ocean thermal structure. The atmospheric model provides sea surface wind for the ocean wave model.

关键词：大气海洋循环模式气象学 SLP模拟